: Make a Tattoo Gun

I've personally used this so I know it works...
Things you'll need:

• bic pen (this is your tube that houses the needle)
• 4 or 5" section of guitar string ,second one from the smallest. ( this is your needle)
• tooth brush ( this gets bent like a "7" and joins the pen to the motor)
• an eraser from a pencil (this joins the shaft of the motor to the needle/guitar string)
• small battery operated motor (from a "walkman" or a hand held fan)
• some tape (to join everything together)

Putting the pieces together:

1. Take the guitar string and bend a little bit of the end down or up.
2. Take out the ink tube of the pen, and cut it to about a 3 or 4" length, now file down the brass tip of the pen to get the ball out, make the hole big enough to allow passage of the needle.
3. Insert the needle into the pen.
4. Now take the tooth brush and cut off the bristles making it about 4" long. Heat it up in the middle with a lighter and bend it in to a "7" and hold in place untill stiff.
5. Join/tape the pen needle assembly to the tooth brush.
6. Now take the eraser from the pencil and shove it onto the shaft of the motor, try to get it as dead center as possible. Join the pen/needle/tooth brush to the motor/eraser assembly, tape the brush to the motor.
7. Take the bent part of the needle/guitar stirng and stick it into the eraser, IMPORTANT- the needle must be purposely OFF CENTER.
8. Now all that is left to do is find a power source, I used the plug-in adapter frrom a cd player. i guess you could hook up some batteries to a switch and then to the contacts of the motor. You can use the Ink from the pen for the tattoo.